.banner-container{
    height: 100%;
}
.banner-item{
    height: 100%;
}
.banner-screen{
    background-color: #70bfcc;
    position: relative;
}
.banner-mes{
    background-color: #eeeeee;
}
.banner-skills{
    background-color: white;
}
.banner-contact{
    background-color: #70bfcc;
}
.back-top{
    position: fixed;
    bottom:50px;
    right:50px;
    font-size:3rem;
    color: rgba(204,204,204,.5);
}
.back-top:hover{
    color: rgb(204, 201, 82);
    cursor: pointer;
}
.open-source{
    position: absolute;
    width: 340px;
    height: 100px;
    margin: 0 0 0 -170px;
    left: 50%;
    top: 60%;
    display: flex;
    flex-flow: row nowrap;
    justify-content: center;
    align-items: center;
}
.open-source:before{
    content: '';
    position: absolute;
    top: 77%;
    background: white;
    width: 100%;
    height: 2px;
}
.open-source li {
    width: 40px;
    height: 40px;
    margin: 0 15px;
    border-radius:50%;
    border:3px solid transparent;
    display:flex;
    justify-content: center;
    align-items: center;
}
.open-source li:hover{
    border:3px solid white;
}
.open-source a {
    font-size: 3rem;
    color: white;
}

